mirror of
https://github.com/revanced/Apktool.git
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161 lines
6.7 KiB
Java
161 lines
6.7 KiB
Java
/**
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* Copyright (C) 2018 Ryszard Wiśniewski <brut.alll@gmail.com>
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* Copyright (C) 2018 Connor Tumbleson <connor.tumbleson@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package brut.androlib.res.decoder;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.util.logging.Logger;
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import org.xmlpull.v1.XmlPullParser;
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import org.xmlpull.v1.XmlPullParserException;
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import org.xmlpull.v1.wrapper.XmlPullParserWrapper;
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import org.xmlpull.v1.wrapper.XmlPullWrapperFactory;
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import org.xmlpull.v1.wrapper.XmlSerializerWrapper;
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import org.xmlpull.v1.wrapper.classic.StaticXmlSerializerWrapper;
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import brut.androlib.AndrolibException;
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import brut.androlib.res.data.ResTable;
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import brut.androlib.res.util.ExtXmlSerializer;
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/**
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* @author Ryszard Wiśniewski <brut.alll@gmail.com>
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*/
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public class XmlPullStreamDecoder implements ResStreamDecoder {
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public XmlPullStreamDecoder(XmlPullParser parser,
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ExtXmlSerializer serializer) {
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this.mParser = parser;
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this.mSerial = serializer;
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}
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@Override
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public void decode(InputStream in, OutputStream out)
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throws AndrolibException {
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try {
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XmlPullWrapperFactory factory = XmlPullWrapperFactory.newInstance();
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XmlPullParserWrapper par = factory.newPullParserWrapper(mParser);
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final ResTable resTable = ((AXmlResourceParser) mParser).getAttrDecoder().getCurrentPackage().getResTable();
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XmlSerializerWrapper ser = new StaticXmlSerializerWrapper(mSerial, factory) {
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boolean hideSdkInfo = false;
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boolean hidePackageInfo = false;
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@Override
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public void event(XmlPullParser pp)
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throws XmlPullParserException, IOException {
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int type = pp.getEventType();
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if (type == XmlPullParser.START_TAG) {
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if ("manifest".equalsIgnoreCase(pp.getName())) {
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try {
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hidePackageInfo = parseManifest(pp);
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} catch (AndrolibException ignored) {}
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} else if ("uses-sdk".equalsIgnoreCase(pp.getName())) {
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try {
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hideSdkInfo = parseAttr(pp);
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if (hideSdkInfo) {
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return;
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}
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} catch (AndrolibException ignored) {}
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}
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} else if (hideSdkInfo && type == XmlPullParser.END_TAG
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&& "uses-sdk".equalsIgnoreCase(pp.getName())) {
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return;
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} else if (hidePackageInfo && type == XmlPullParser.END_TAG
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&& "manifest".equalsIgnoreCase(pp.getName())) {
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super.event(pp);
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return;
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}
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super.event(pp);
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}
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private boolean parseManifest(XmlPullParser pp)
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throws AndrolibException {
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String attr_name;
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// read <manifest> for package:
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for (int i = 0; i < pp.getAttributeCount(); i++) {
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attr_name = pp.getAttributeName(i);
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if (attr_name.equalsIgnoreCase(("package"))) {
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resTable.setPackageRenamed(pp.getAttributeValue(i));
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} else if (attr_name.equalsIgnoreCase("versionCode")) {
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resTable.setVersionCode(pp.getAttributeValue(i));
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} else if (attr_name.equalsIgnoreCase("versionName")) {
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resTable.setVersionName(pp.getAttributeValue(i));
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}
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}
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return true;
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}
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private boolean parseAttr(XmlPullParser pp)
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throws AndrolibException {
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for (int i = 0; i < pp.getAttributeCount(); i++) {
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final String a_ns = "http://schemas.android.com/apk/res/android";
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String ns = pp.getAttributeNamespace(i);
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if (a_ns.equalsIgnoreCase(ns)) {
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String name = pp.getAttributeName(i);
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String value = pp.getAttributeValue(i);
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if (name != null && value != null) {
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if (name.equalsIgnoreCase("minSdkVersion")
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|| name.equalsIgnoreCase("targetSdkVersion")
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|| name.equalsIgnoreCase("maxSdkVersion")) {
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resTable.addSdkInfo(name, value);
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} else {
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resTable.clearSdkInfo();
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return false; // Found unknown flags
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}
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}
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} else {
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resTable.clearSdkInfo();
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if (i >= pp.getAttributeCount()) {
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return false; // Found unknown flags
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}
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}
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}
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return ! resTable.getAnalysisMode();
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}
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};
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par.setInput(in, null);
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ser.setOutput(out, null);
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while (par.nextToken() != XmlPullParser.END_DOCUMENT) {
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ser.event(par);
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}
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ser.flush();
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} catch (XmlPullParserException ex) {
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throw new AndrolibException("Could not decode XML", ex);
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} catch (IOException ex) {
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throw new AndrolibException("Could not decode XML", ex);
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}
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}
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public void decodeManifest(InputStream in, OutputStream out)
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throws AndrolibException {
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decode(in, out);
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}
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private final XmlPullParser mParser;
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private final ExtXmlSerializer mSerial;
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private final static Logger LOGGER = Logger.getLogger(XmlPullStreamDecoder.class.getName());
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}
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